﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using CMS.ORM;//请先添加引用
namespace CMS.ORM.DAL
{
    /// <summary>
    /// 数据访问类TagLibrary。
    /// </summary>
    public class TagLibrary
    {
        public TagLibrary()
        { }
        #region  成员方法
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(string tag)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from TagLibrary");
            strSql.Append(" where tag=@tag ");
            SqlParameter[] parameters = {
					new SqlParameter("@tag", SqlDbType.NVarChar,50)};
            parameters[0].Value = tag;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public bool Add(CMS.ORM.Model.TagLibrary model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into TagLibrary(");
            strSql.Append("tag,amount,lastUpdateTime)");
            strSql.Append(" values (");
            strSql.Append("@tag,@amount,@lastUpdateTime)");
            SqlParameter[] parameters = {
					new SqlParameter("@tag", SqlDbType.NVarChar,50),
					new SqlParameter("@amount", SqlDbType.Decimal,9),
					new SqlParameter("@lastUpdateTime", SqlDbType.DateTime)};
            parameters[0].Value = model.tag;
            parameters[1].Value = model.amount;
            parameters[2].Value = model.lastUpdateTime;

            try
            {
                DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
                return true;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                return false;
            }
        }
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(CMS.ORM.Model.TagLibrary model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update TagLibrary set ");
            strSql.Append("amount=@amount,");
            strSql.Append("lastUpdateTime=@lastUpdateTime");
            strSql.Append(" where tag=@tag ");
            SqlParameter[] parameters = {
					new SqlParameter("@tag", SqlDbType.NVarChar,50),
					new SqlParameter("@amount", SqlDbType.Decimal,9),
					new SqlParameter("@lastUpdateTime", SqlDbType.DateTime)};
            parameters[0].Value = model.tag;
            parameters[1].Value = model.amount;
            parameters[2].Value = model.lastUpdateTime;

            try
            {
                DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
                return true;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(string tag)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from TagLibrary ");
            strSql.Append(" where tag=@tag ");
            SqlParameter[] parameters = {
					new SqlParameter("@tag", SqlDbType.NVarChar,50)};
            parameters[0].Value = tag;

            try
            {
                DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
                return true;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                return false;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public CMS.ORM.Model.TagLibrary GetModel(string tag)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 tag,amount,lastUpdateTime from TagLibrary ");
            strSql.Append(" where tag=@tag ");
            SqlParameter[] parameters = {
					new SqlParameter("@tag", SqlDbType.NVarChar,50)};
            parameters[0].Value = tag;

            CMS.ORM.Model.TagLibrary model = new CMS.ORM.Model.TagLibrary();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                model.tag = ds.Tables[0].Rows[0]["tag"].ToString();
                if (ds.Tables[0].Rows[0]["amount"].ToString() != "")
                {
                    model.amount = decimal.Parse(ds.Tables[0].Rows[0]["amount"].ToString());
                }
                if (ds.Tables[0].Rows[0]["lastUpdateTime"].ToString() != "")
                {
                    model.lastUpdateTime = DateTime.Parse(ds.Tables[0].Rows[0]["lastUpdateTime"].ToString());
                }
                return model;
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select tag,amount,lastUpdateTime ");
            strSql.Append(" FROM TagLibrary ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" tag,amount,lastUpdateTime ");
            strSql.Append(" FROM TagLibrary ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /*
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetList(int PageSize,int PageIndex,string strWhere)
        {
            SqlParameter[] parameters = {
                    new SqlParameter("@tblName", SqlDbType.VarChar, 255),
                    new SqlParameter("@fldName", SqlDbType.VarChar, 255),
                    new SqlParameter("@PageSize", SqlDbType.Int),
                    new SqlParameter("@PageIndex", SqlDbType.Int),
                    new SqlParameter("@IsReCount", SqlDbType.Bit),
                    new SqlParameter("@OrderType", SqlDbType.Bit),
                    new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
                    };
            parameters[0].Value = "TagLibrary";
            parameters[1].Value = "ID";
            parameters[2].Value = PageSize;
            parameters[3].Value = PageIndex;
            parameters[4].Value = 0;
            parameters[5].Value = 0;
            parameters[6].Value = strWhere;	
            return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
        }*/

        #endregion  成员方法
    }
}


